This week's secret ingredient was lightbulbs! Cheer on the competitors in this zany science cook-off. Teachers compete before a live audience at the Exploratorium for the revered title, "Iron Science Teacher."

Cheer on the competitors in this zany science cook-off. Teachers compete before a live audience at the Exploratorium for the revered title, "Iron Science Teacher." The Exploratorium's Iron Science Teacher competition showcases science teachers as they devise demonstrations around a particular "secret" ingredient—and today's secret ingredient was oil!

NOAA Chief Scientist Steve Hammond and Okeanos Commander Joe Pica introduce us to the capabilities of the new NOAA research vessel, the Okeanos Explorer, as it sets out on its maiden voyage to Indonesia. ROV footage and maps courtesy of NOAA Office of Ocean Exploration and Research.

This April Fools’ Day After Dark event exposed people’s threshold for taking chances. For example, visitors could test their belief in the laws of physics as a bowling ball swung toward them. They could also tackle a climbing wall, try their luck at casino games, and see if they had the nerve to carry out the instructions on a card they were given.

On March 1st, we connected live with scientists aboard the scientific drilling vessel the JOIDES Resolution off the coast of Antarctica. Meet geologists Rob Dunbar, Carlota Escutia, and Christina Riesselman and learn about their historic expedition to Antarctica that is helping reveal the history of Earth's climate and teaching us about our climate future.

Webcasts made possible through the generosity of the Gordon and Betty Moore Foundation, the Jim Clark Endowment for Internet Education, the McBean Family Foundation.

Bandwidth and infrastructure support for connectivity to the California Research and Education Network and to other Internet2-connected networks provided by the Corporation for Educational Networks Initiatives in California (CENIC).